I just replaced the block on my 08 Chevy cobalt its a 2.2L 24 valve 4 cylinder most of the sensors were the same an connected right up some I pulled from old block an put on new block except one its on the top right hand side of block lookin under the hood the old block had a hole to mount it the new one did not all systems are workin but I can't get it to fire on any cylinder can anyone help?

Oxygen sensors are identified by bank and sensor position. Sensor 1 is always pre catalytic converter, sensor two is always post catalytic converter. If an engine is a 4 or 6 cylinder engine the whole engine is considered bank 1, if an engine is a V6, V8, V10....., the engine bank containing cylinder number 1 (first cylinder in the firing order) is considered Bank 1, the other bank is considered Bank 2. Interpretation Oxygen sensor designation B2S1 refers to Bank 2 Sensor 1, it will be the sensor on the engine side of the catalytic converter in bank two. Check this link to determine the cylinder that contains cylinder number 1. http://www.wellsve.com/custom_searches/ds_firing.php Wells Search Parts Catalog

I ASSUME YOU REPLACED THE #4 PLUG WIRE FIRST TO SEE IF IT WAS PLUG WIRE.

TEST A CHEV COIL PACK. THERE ARE VIDEOS SHOWING YOU AS WELL, LIKE ON THIS SITE.

http://www.ehow.com/how_5931701_test-gm-ignition-coil.html

That must be the crankshaft position sensor. That's what tells the car when to fire. There usually on the bottom of the motor but it's sounding like that's your problem. Could have a bad crank sensor

Have you tried to do a hard reset? Disconnect your battery for 24 hours. And try it again. This will usually fix a lot of computer malfunctions. Good luck.

The Crank shift sensor is located in front of the motor in between the intake manifold and oil filter housing, nest to the knock sensor. Look on side cylinder block beside starter.you have to remove the starter to remove the crankshaft sensor. Hope this helps. Thanks for choosing Fixya, RJ

code 13 is the oxygen sensor code 24 has to do with the MAP sensor

If the wheel is turned in either direction, pull the whell in that direction and try getting the key out. If that doesn't do it, try shifting the automatic transmission from Park back to drive, and then to park again to disengage the interlock.

That is a hard problem to pin point without knowing what codes the computer has stored. It can be any number or sensors or engine problems.

You can go to most auto parts stores and they will pull the codes for you for free.